IEC 60939-2-1:2004

Complete filter units for radio interference suppression - Part 2-1: Blank detail specification - Passive filter units for electromagnetic interference suppression - Filters for which safety tests are required (assessment level D/DZ)

is a supplementary document to the sectional specification and contains requirements for style and layout and minimum content of detail specifications. In the preparation of detail specifications, the content of 1.4 of the sectional specification shall be taken into account. The use of IEC 60939-2-2 may be more appropriate for components where approval and requalification tests contribute considerably to the cost of the product, whereas the employment of this specification may be necessary for components manufactured in mass production. This specification offers the assessment levels D and DZ (Zero defect).

General Information

• Status: Published
• Publication Date: 07-Nov-2004
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 31.160 - Electric filters
• Technical Committee: TC 40 - Capacitors and resistors for electronic equipment
• Current Stage: PPUB - Publication issued
• Start Date: 28-Feb-2005
• Completion Date: 08-Nov-2004

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD 60939-2-1
First edition
2004-11
Complete filter units for radio
interference suppression –
Part 2-1:
Blank detail specification –
Passive filter units for electromagnetic
interference suppression –
Filters for which safety tests are required
(assessment level D/DZ)
Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.
Consolidated editions
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edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
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INTERNATIONAL IEC
STANDARD 60939-2-1
First edition
2004-11
Complete filter units for radio
interference suppression –
Part 2-1:
Blank detail specification –
Passive filter units for electromagnetic
interference suppression –
Filters for which safety tests are required
(assessment level D/DZ)
 IEC 2004  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale P
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – 60939-2-1 © IEC:2004(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
COMPLETE FILTER UNITS
FOR RADIO INTERFERENCE SUPPRESSION –

Part 2-1: Blank detail specification –
Passive filter units for electromagnetic interference suppression –
Filters for which safety tests are required (assessment level D/DZ)

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
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with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60939-2-1 has been prepared by IEC technical committee 40:
Capacitors and resistors for electronic equipment.
The text of this standard is based on the following documents:
FDIS Report on voting
40/1466/FDIS 40/1487/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

60939-2-1 © IEC:2004(E) – 3 –
IEC 60939 consists of the following parts under the general title Complete filter units for radio
interference suppression:
Part 1: Generic specification
Part 2: Sectional specification
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
A bilingual version of this standard may be issued at a later date.

– 4 – 60939-2-1 © IEC:2004(E)
INTRODUCTION
Blank detail specification
A blank detail specification is a supplementary document to the sectional specification and
contains requirements for style and layout and minimum content of detail specifications. In the
preparation of detail specifications, the content of 1.4 of the sectional specification shall be
taken into account.
The use of IEC 60939-2-2 may be more appropriate for components where approval and
requalification tests contribute considerably to the cost of the product, whereas the
employment of this specification may be necessary for components manufactured in mass
production. This specification offers the assessment levels D and DZ (Zero defect).
Identification of the detail specification and of the component
The first page of the detail specification should have the layout recommended on the next
page of this blank detail specification. The numbers between square brackets correspond to
the following information which shall be inserted at the position indicated:
[1] The name of the National Standards Organization under whose authority the detail
specification is published and, if applicable, the organization from which the detail
specification is available.
[2] The IECQ symbol and the number allotted to the detail specification by the IECQ General
Secretariat.
[3] The number and issue number of the IECQ generic or sectional specification as relevant;
also national reference if different.
[4] If different from the IECQ number, the national number of the detail specification, date of
issue and any further information required by the national system, together with any
amendment numbers.
[5] A brief description of the component or range of components.
[6] Information on typical construction (when applicable).
For [5] and [6] the text to be given in the detail specification should be suitable for an entry in
the IECQ Register of Approvals.
[7] Outline drawing with main dimensions which are of importance for interchangeability
and/or reference to the appropriate national or international documents for outlines.
Alternatively the drawing may be given in an annex to the detail specification, but [7]
should always contain an illustration of the general outer appearance of the component.
[8] The level(s) of quality assessment covered by the detail specification, as appropriate.
[9] Reference data giving information on the most important properties of the component which
allow comparison between the various component types intended for the same or similar
applications.
60939-2-1 © IEC:2004(E) – 5 –
[1] IEC 60939-2-1-XXX [2]
QC XXXXXXXXX
ELECTRONIC COMPONENTS OF ASSESSED QUALITY IN [4]
ACCORDANCE WITH:
IEC 60939-1
IEC 60939-2
[3]
Outline and dimensions: PASSIVE FILTER UNITS FOR
ELECTROMAGNETIC INTERFERENCE
( . angle projection)
SUPPRESSION AND FOR CONNECTION TO THE

SUPPLY MAINS – FILTERS FOR WHICH SAFETY
TESTS ARE REQUIRED
[5]
[7]
TYPICAL CONSTRUCTION:
cylindrical/rectangular
non-metallic/metallic case
insulated/non-insulated
axial/radial/screwed terminations
contains capacitors of subclasses X and Y
[6]
(Other shapes are permitted within the dimensions given, [8]
see Table 1) Assessment level D / DZ
NOTE For [1] to [9], see preceding page.

REFERENCE DATA: Rated voltages, current range, climatic category, frequency range, insertion
[9]
loss range, functional circuit diagram.

Information on the availability of components qualified to this detail specification
is given in the IEC QC 001005.

– 6 – 60939-2-1 © IEC:2004(E)
COMPLETE FILTER UNITS
FOR RADIO INTERFERENCE SUPPRESSION –

Part 2-1: Blank detail specification –
Passive filter units for electromagnetic interference suppression –
Filters for which safety tests are required (assessment level D/DZ)

1 General data
1.1 Method of mounting for vibration, bump and shock tests
See 1.3.2 of IEC 60939-2.
1.2 Dimensions
Table 1 – Dimensions related to case size
Case size Dimensions
reference
mm
L W H . . . . .
When there is no case size reference, Table 1 may be omitted and the dimensions shall be
given in Table 2, which then becomes Table 1.
The dimensions shall be given as maximum dimensions or as nominal dimensions with a
tolerance.
1.3 Ratings and characteristics
Rated voltages (see Table 2a)
Category voltage (if applicable) (see Table 2a)
Rated current (see Table 2b)
DC line resistance or d.c. voltage drop at rated current
Maximum current at upper category temperature and derating curve (if applicable)
Maximum internal and external temperatures for temperature rise test (if applicable)
Climatic category
Rated temperature
Insertion loss, no load/room temperature (see Table 2a)
Insertion loss, load/temperature (see Table 2b)
Insulation resistance
Discharge resistance (if applicable)
Category of passive flammability (if applicable)

60939-2-1 © IEC:2004(E) – 7 –
Table 2a – Insertion loss at no load
Case size or type Rated voltage Category Minimum insertion loss
designation voltage dB
kHz kHz MHz MHz MHz GHz GHz
Table 2b – Insertion loss at specified current and temperature
Case size or type Rated Test Test Minimum insertion loss
designation current current temp.
dB
°C
kHz kHz MHz MHz MHz GHz GHz
1.4 Normative references
IEC 60384-1, Fixed capacitors for use in electronic equipment – Part 1: Generic specification
IEC 60410, Sampling plans and procedures for inspection by attributes
IEC 60939-1, Complete filter units for radio interference suppression – Part 1: Generic

specification
IEC 60939-2, Complete filter units for radio interference suppression – Part 2: Sectional

specification
1.5 Marking
The marking of the filter, if any, and the packing shall be in accordance with 1.5 of
IEC 60939-2.
The details of the marking of the filter and the packing shall be given in full in the detail
specification.
___________
To be published.
– 8 – 60939-2-1 © IEC:2004(E)
1.6 Ordering information
Orders for filters covered by this specification shall contain, in clear or in coded form, the
following information:
(a) type designation;
(b) rated voltage;
(c) number and issue reference of this detail specification.
1.7 Certified test records
Required/not required.
1.8 Additional information (not for inspection purposes)
1.9 Additional or increased severities or requirements to those specified in the
generic and/or sectional specification
NOTE Additional or increased requirements should be specified only when essential.

Table 3 – Other characteris
...